How to Implement In-App Purchases in Windows 10 Apps?

Question

I want to integrate in-app purchasing in my windows universal app. I do the following thing before coding.

• Make App on Windows Dev Center

• Ad

Answer 1

WindowsStoreProxy.xml to c# code and serialize to xml file

public static CurrentApp LoadCurrentApp(string productKey = "Premium", bool isActive = false, bool isTrial = false)
    {
        CurrentApp currentApp = new CurrentApp();
        currentApp.ListingInformation = new ListingInformation()
        {
            App = new App()
            {
                AgeRating = "3",
                AppId = BasicAppInfo.AppId,
                CurrentMarket = "en-us",
                LinkUri = "",
                MarketData = new MarketData()
                {
                    Name = "In-app purchases",
                    Description = "AppDescription",
                    Price = "5.99",
                    CurrencySymbol = "$",
                    CurrencyCode = "USD",
                }
            },
            Product = new Product()
            {
                ProductId = productKey,
                MarketData = new MarketData()
                {
                    Lang = "en-us",
                    Name = productKey,
                    Description = "AppDescription",
                    Price = "5.99",
                    CurrencySymbol = "$",
                    CurrencyCode = "USD",
                }
            }
        };
        currentApp.LicenseInformation = new LicenseInformation()
        {
            App = new App()
            {
                IsActive = isActive.ToString(),
                IsTrial = isTrial.ToString(),
            },
            Product = new Product()
            {
                ProductId = productKey,
                IsActive = isActive.ToString(),
            }
        };
        return currentApp;
    }

Base xml model

[XmlRoot(ElementName = "MarketData")]
public class MarketData
{
    [XmlElement(ElementName = "Name")]
    public string Name { get; set; }
    [XmlElement(ElementName = "Description")]
    public string Description { get; set; }
    [XmlElement(ElementName = "Price")]
    public string Price { get; set; }
    [XmlElement(ElementName = "CurrencySymbol")]
    public string CurrencySymbol { get; set; }
    [XmlElement(ElementName = "CurrencyCode")]
    public string CurrencyCode { get; set; }
    [XmlAttribute(AttributeName = "lang", Namespace = "http://www.w3.org/XML/1998/namespace")]
    public string Lang { get; set; }
}

[XmlRoot(ElementName = "App")]
public class App
{
    [XmlElement(ElementName = "AppId")]
    public string AppId { get; set; }
    [XmlElement(ElementName = "LinkUri")]
    public string LinkUri { get; set; }
    [XmlElement(ElementName = "CurrentMarket")]
    public string CurrentMarket { get; set; }
    [XmlElement(ElementName = "AgeRating")]
    public string AgeRating { get; set; }
    [XmlElement(ElementName = "MarketData")]
    public MarketData MarketData { get; set; }
    [XmlElement(ElementName = "IsActive")]
    public string IsActive { get; set; }
    [XmlElement(ElementName = "IsTrial")]
    public string IsTrial { get; set; }
}

[XmlRoot(ElementName = "Product")]
public class Product
{
    [XmlElement(ElementName = "MarketData")]
    public MarketData MarketData { get; set; }
    [XmlAttribute(AttributeName = "ProductId")]
    public string ProductId { get; set; }
    [XmlElement(ElementName = "IsActive")]
    public string IsActive { get; set; }
}

[XmlRoot(ElementName = "ListingInformation")]
public class ListingInformation
{
    [XmlElement(ElementName = "App")]
    public App App { get; set; }
    [XmlElement(ElementName = "Product")]
    public Product Product { get; set; }
}

[XmlRoot(ElementName = "LicenseInformation")]
public class LicenseInformation
{
    [XmlElement(ElementName = "App")]
    public App App { get; set; }
    [XmlElement(ElementName = "Product")]
    public Product Product { get; set; }
}

[XmlRoot(ElementName = "CurrentApp")]
public class CurrentApp
{
    [XmlElement(ElementName = "ListingInformation")]
    public ListingInformation ListingInformation { get; set; }
    [XmlElement(ElementName = "LicenseInformation")]
    public LicenseInformation LicenseInformation { get; set; }
}

Get XmlFile

public async static Task GetWindowsStoreProxyXmlAsync(string productKey, bool isActive = false, bool isTrial = false)
    {
        StorageFile xmlFile = null;
        var currentApp = LoadCurrentApp(productKey, isActive, isTrial);
        var xml = StorageHelper.SerializeToXML(currentApp);
        if (!string.IsNullOrEmpty(xml))
        {
            xmlFile = await StorageHelper.LocalFolder.CreateFileAsync("MarketData.xml", CreationCollisionOption.ReplaceExisting);
            await FileIO.WriteTextAsync(xmlFile, xml);
        }
        return xmlFile;
    }